DE68912375D1 - Device for developing latent electrostatic images. - Google Patents

Device for developing latent electrostatic images.

Info

Publication number
DE68912375D1
DE68912375D1 DE89302735T DE68912375T DE68912375D1 DE 68912375 D1 DE68912375 D1 DE 68912375D1 DE 89302735 T DE89302735 T DE 89302735T DE 68912375 T DE68912375 T DE 68912375T DE 68912375 D1 DE68912375 D1 DE 68912375D1
Authority
DE
Germany
Prior art keywords
latent electrostatic
electrostatic images
developing latent
developing
images
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE89302735T
Other languages
German (de)
Other versions
DE68912375T2 (en
Inventor
Dan A Hays
William H Wayman
Steven B Bolte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/171,062 priority Critical patent/US4868600A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Application granted granted Critical
Publication of DE68912375D1 publication Critical patent/DE68912375D1/en
Publication of DE68912375T2 publication Critical patent/DE68912375T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/01Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
    • G03G15/0105Details of unit
    • G03G15/0126Details of unit using a solid developer
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0803Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer in a powder cloud
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0806Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0813Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by means in the developing zone having an interaction with the image carrying member, e.g. distance holders
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00Apparatus for electrophotographic processes
    • G03G2215/06Developing structures, details
    • G03G2215/0602Developer
    • G03G2215/0604Developer solid type
    • G03G2215/0614Developer solid type one-component
    • G03G2215/0621Developer solid type one-component powder cloud
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00Apparatus for electrophotographic processes
    • G03G2215/06Developing structures, details
    • G03G2215/0634Developing device
    • G03G2215/0636Specific type of dry developer device
    • G03G2215/0643Electrodes in developing area, e.g. wires, not belonging to the main donor part
DE1989612375 1988-03-21 1989-03-20 Device for developing latent electrostatic images. Expired - Lifetime DE68912375T2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/171,062 US4868600A (en) 1988-03-21 1988-03-21 Scavengeless development apparatus for use in highlight color imaging

Publications (2)

Publication Number Publication Date
DE68912375D1 true DE68912375D1 (en) 1994-03-03
DE68912375T2 DE68912375T2 (en) 1994-06-16

Family

ID=22622348

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989612375 Expired - Lifetime DE68912375T2 (en) 1988-03-21 1989-03-20 Device for developing latent electrostatic images.

Country Status (4)

Country Link
US (1) US4868600A (en)
EP (1) EP0334581B1 (en)
JP (1) JPH0664397B2 (en)
DE (1) DE68912375T2 (en)

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US4669852A (en) * 1983-09-27 1987-06-02 Canon Kabushiki Kaisha Developing apparatus
JPH0228865B2 (en) * 1983-10-04 1990-06-26 Konishiroku Photo Ind
US4647179A (en) * 1984-05-29 1987-03-03 Xerox Corporation Development apparatus
JPH0652438B2 (en) * 1986-02-08 1994-07-06 富士通株式会社 Image forming device
US4731634A (en) * 1986-11-03 1988-03-15 Xerox Corporation Apparatus for printing black and plural highlight color images in a single pass
US4913348A (en) * 1988-12-22 1990-04-03 Xerox Corporation Method and apparatus for creating contrasting images at substantially full contrast voltage

Also Published As

Publication number Publication date
DE68912375T2 (en) 1994-06-16
EP0334581A3 (en) 1991-03-13
JPH01304477A (en) 1989-12-08
EP0334581A2 (en) 1989-09-27
US4868600A (en) 1989-09-19
EP0334581B1 (en) 1994-01-19
JPH0664397B2 (en) 1994-08-22

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